Antifouling composition.



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"Kwram I To? .gB'e" it known *that I-, CABLETON ELLIS, 'a

citizen: of the *UIi-itd States, residing at This invention relates to paints intended 10 -;fo' r ships bottoms-andrel'ates particularly to antifouling compositions having both bactericidal and fungicidal properties. In the manufacture of antifouling paints,

it has been the practice toemploy copper in Y yarious forms and while the latter is'a pow" eiffiil-fungieide, it is not so active as a baci s- I t The'presentiiivention involves the use of 'a powerful bactericidal body,- namely, the- "12,0 condensation products of various'phenols, or with bodies such as the 'amlms, as,, f or. .1nstance,w1th carbolic and cresyliclacidandthe like phenolic bodies.

- By'the joint, use of copper compounds and these formaldehyde condensation products,

"an antifoulin'g paint is secured which hasremarkably efiicient properties, servingtokeep the hulls of ships free from all vegetable and animal growths, for a long period of time L" even in the warm waters of tropical'regions.

' It is further theobject of this invention to provide a composition which has dehiscent properties so that by forming a sort of Stratified or lamellar coating, a peeling effect; is secured which supplements the inhibitive action of the copper andformaldehyde-boglies- 7 In the preferred formof invent-ion If en'xploy also an Oll or other suitable vehicle 4 0. carrylng copper actually in solution'so "asto obtain the peculiar fungicidalefl'ect which copper in such a condition'has been. found'to solved copper compound. I v

A composition illustrative of myinvention is made as follows;.Ordinary.formalin solution, containing approximately 40% of tor produce, together with more'or less of a dis;

. maldehyde,is' mixed with about' an equal volume of commercial cresylic acid and a small quantity of hydrochloric acid ;-add ing o ma of the latter ordinarily enough" about 10% of concentrated commercial acid; vThemixture is thenstirred gummy mass is produced. "This. gummy j matenal as formaldehyde with Patented Dec, 28,- 1909'.

' App1ica.tion'"fi1ed becernber 26, 1908. Serial No. 439,298

allowed to stand for 24 hours to harden and is then pulverized and. washed first with dilute carbonate of soda solution, and then with water until'the' free acid is removed. The product is driedand finally ground. 2 lbs. of this condensed product, 2 lbs. of 'car-.

gypsum, 3; lb. of sublimed sulfur and-l lb.of barytes arethen ground with a vehicleconsisting of lime hardened'rosin, 4 lbs.,v woog 2 lbs, copper oleate 1b., so vent nap paste. 'or'composition of the desired consistency.

the rosin and add about 4% of lime, heating to 300 or 400 to secure a. complete incorporation or 'combinationof the lime and rosin. The woodoil is then added, followed by the copper oleate and-the thinning solvents...-

vent liiaterial and the composition may be given"- any desired color bythe addition of suitable pigments. As green is the. color customarily desired, I ordinarily-enter a suitable quantity of Brunswick green or j other green pigment. Y

The wood oil may be omitted if a .very' rapidly drying lcomposition is required; as

cumstances, I prefer to reduce or omit entirely the slccative 0 11. Various other 0113 wood oil although the latter has a'pecuL iar inhibitive action on marine vegetable growths. Such oils aslinseed, cottonseed, corn, rosin or other semi-drying oils, or even a small p'roportionof non-drying oil such as petroleum oil may beintroduceda The usual drying agents such as'manganese resinate, litharge, etc. may be incorporate v .to the extent desired, .Various other forms used m lieu of the oleate, as for eirample, cooper palmitate and the-like. While the introduce-the solid-copper compound, may

pounds such as copper :oxi'd an the like may be used in this. composition in lieu ofand also introduce other inhibitive bodies bonate of copper, 3 lbs. of calcium sulfate or v 7 hi ese .65 a 4 lbs.- and benzin 2, lbs. to make a ln making theve'hicle, preferably I melt The consistency may be varied by modify-' ing the-proportion of the vehicle and sol--- in some instances, it is necessary to remove the vessel fromthe water, palnt 1t and- .launch 1t withln 24 hours. Under such c1r.-.

carbonate 1s a satisfactory form in'which to also make use of VaI'IOIIS Ot hGI co per coni- 1 of oil-soluble copper compounds may be including the arsenic compounds, oxid of "mercury, zinc salts, etc.

' be used inwhole or in art as for instance,

'6? Manila copal, 'kau'ri an similarhard resins.

'turpentine, wood turpentine, pine oil and the like. To reduce the inflammability, a quantity of carbon tetrachlorid may, be !-added.'

by mixing ordina solvent naphtha with about an equal v0 ume of heavy naphtha from petroleum, flashing at a temperature of from 95 to 110. F. or even higher. c Ordinarily anilin-oil condenses with for- .maldehydeto form a solidbody ,of considerable utility which may be usedin lieu of,

the described condensation products with the phenols. About equalflvolumes of the oil and formalin should be used. Pain and meta formaldehyde also, ma] be' "em-- ployed without condensation wit phenols or' amins. By theterm, condensation prod ucts as hereinafter used I'embi'ace the solid bodies formed b *the condensation of; formaldehyde with itself or'other organic com pounds. Having described my invention and indicated a ty ical composition to thedetails of which escrip'tion Ido' not wish-to be 40 limited, what I claim is 1. An antifouling paint composition com-- prising the condensation products of formaldehyde with phenol materials incorporated in a suitable vehicle carrying a 'bind- In lieu of rosin, other resinous bodies may 'satisfactorythinning fluid is madeing material and a dissolved copper compound;- c

2. An antifouling paint composition comprising the condensation products of formaldehyde with organic material incorporated in a vehicle carrying a resinous binder and a dissolved copper compound.

- 3. An antifouling paint composition comprising thercondensation products of formaldehyde with phenolic'materiaf incorporated withfa dissolved copper'compound, a

resinous binding material and a volatile vehicle. i I a 4.- An anti'fouling paint composition comprising condenszition products of formaldehyde, a dissolv (1/ copper compound, a res- "inous binding [material and a. Volatile i e-- hicle including splvcntmnaphtha. I v

5. .An antifouling' paint ,composition comprising a formaldehyde condensation prod- 7 not, copper carbonate, copper oleate, and a binding material.

61 'An' antifouling paint composition comprising a formaldehyde condensation product, copper carbonate, an oil s'o1uble"copper compound, a reslhousmaterial anda volatile vehicle.

7. An antifouling paint composition comprising a formaldehyde condensation Prods not, an oil insoluble com ound of copper5 an oil soluble compound-o copper, a resinous binder, and a volatile vehicle.f f

.8. An antifouling pain-t composition 'conr' prising the formaldehyde ate, filling material, copper o 'eate, a bardened rosin, solvent naphtha, andtben'zin.

"In testimony whereof I have afiixed'mj vsignature in presence of two witnesses.

CARLETON- ELLIS;

Witnesses: p

NATHANIEL L. Fos'ran, FRANCES I. NEWMAN.

I v condensation product with 'cresyli'e' ac d, co per :ca'rbon- 

